The code

donutChart
    .width(containerWidth)
    .height(containerWidth)
    .externalRadius(containerWidth/2.5)
    .internalRadius(containerWidth/5)
    .colorScheme(briteChartsColors)
    .on('customMouseOver', function(data) {
        legendChart.highlight(data.data.id);
    })
    .on('customMouseOut', function() {
        legendChart.clearHighlight();
    });

donutContainer.datum(dataset).call(donutChart);

legendContainer.datum(dataset).call(legendChart);
                

Colors

You can also check other color schemas:

Data Input

Check the data input schema of this chart.

Export Chart

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The code

donutChart
    .width(containerWidth)
    .height(containerWidth/1.8)
    .externalRadius(containerWidth/5)
    .internalRadius(containerWidth/10)
    .on('customMouseOver', function(data) {
        legendChart.highlight(data.data.id);
    })
    .on('customMouseOut', function() {
        legendChart.clearHighlight();
    });

donutContainer.datum(dataset).call(donutChart);